My take: If it was called property, you could legally sell your kidney, and they do not want that for a lot of reasons. However, the govt protects you and me by

My take: If it was called property, you could legally sell your kidney, and they do not want that for a lot of reasons. However, the govt protects you and me by other laws. If someone ties you up, takes your kidney etc etc, they will be charged with worse crimes than stealing property (kidney). Once in a hospital, they have to destroy the tissue, fluids etc so you sign at the dotted line, or is implied, that after that it's theirs to destroy. You can't walk around with your amputated arm for example. Or use for research, if that's the case. Personally, I think that the patient should consent first and then cut into the profit or be paid a certain amount if his "body" is commercialized.